光纤传感监测技术用于沥青路面损伤监测的研究

摘要

Asphalt pavements have been widely-used in high-grade highway for the advantages of short-period construction,easy reclamation,etc.However,flexible asphalt pavements often suffer from damages,such as cracks,ruts and interface stripping,under the effect of vehicle load and environmental temperature and moisture,which shortens the service life,increases the transportation pressure and brings about large economical loss.Therefore,it is important to capture the mechanism of damage occur-rence and propagation.Different with traditional methods,such as batch tests and finite element analy-sis,optical fiber sensing technology has been more and more applied to abstracting whole-history mechan-ical properties.In this background,a comprehensive summary on the occurrence of common distresses of asphalt pavement has been conducted;general review on the application of optical fiber sensors in asphalt pavement monitoring also stated;and possible approaches on employing optical fiber sensing technology to recognize the multiple damages have been provided.The research in this article will ultimately serve for the full-scale monitoring and optimization of components and structures of asphalt pavement.%沥青路面因施工工期短、可回收利用等优点而在高等级公路中得到广泛应用，然在荷载及环境温度、湿度等作用下，柔性沥青面层常常发生裂纹、车辙、界面剥离等损伤。这些损伤缩短了沥青路面的服役寿命、增加了交通压力，同时也带了沉重的经济负担，因此，掌握这些损伤的成因意义重大。区别于批量试验及有限元模拟等传统方法，光纤传感监测技术被越来越多地应用于沥青路面结构的全历程力学特征的获取。即在该研究背景下，对沥青路面结构的常见病害发生机理进行了归纳总结，综述了光纤传感技术应用于沥青路面的监测现状，并提出了沥青路面多损伤的光纤智能监测的可行性方法。研究旨在服务于沥青路面的全尺度监测提供及其材料和结构的优化。